JP2002167077A - Paper carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a work for removing jammed paper in a unit having a paper carrying function that is conducted by drawing out the unit from an image recording device, in the paper carrying device used for the image recording device, etc., having a both sides printing function, and keep the stiffness of the unit. SOLUTION: As a paper carrying unit 3 composed of a frame 3a and an upper cover 3b rotatably held by the frame 3a is drawn out from a device to the outside (in the direction of an arrow B), the other end 15d of an upper cover stopping member 15 held by the upper cover 3b is removed from a rotating position regulating hole 3n formed on the frame 3a, so that the upper cover 3b can freely rotate. A guide means holding the frame 3a and the upper cover 3b is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet conveying apparatus used for an image recording apparatus or the like, and more particularly to a sheet conveying apparatus suitable for a recording apparatus having a double-sided printing function.

[0002]

2. Description of the Related Art Conventionally, in this type of paper conveying apparatus,
A unit having a paper transport mechanism for duplex printing includes a frame having a drive roller, an upper cover equipped with a driven roller cooperating with the drive roller, and a maintenance access side for fixing the upper cover in a predetermined position. And the like. When a paper jam occurs, the unit is pulled out of the image recording apparatus main body, the fixing member is manually removed, and then the upper cover is opened to remove the jammed paper.

[0003]

However, in the conventional paper transport apparatus for duplex printing, when removing jammed paper remaining in the unit, the unit having the paper transport mechanism is removed from the apparatus body. Since the upper cover cannot be opened unless the latch portion of the upper cover and the stopper member of the frame is removed, the operation is complicated and troublesome.

Further, in the paper transport unit having the above structure,
A forward / reverse rotation roller and a plurality of pressure rollers that rotate following the rotation are provided, but these are evenly distributed due to the warpage of the upper cover and the lifting of the center of the upper cover due to the effect of the spring that presses the pressure roller. Cannot be applied to the sheet to be conveyed. As a result, there is a problem that skew and jam of the transport paper occur.

An object of the present invention is to facilitate the operation of removing jammed paper when a paper jam occurs in a paper transport mechanism for double-sided printing, and to use a pressure spring such as a pressure roller to press the paper transport mechanism. It is an object of the present invention to provide a sheet conveying device capable of always stably conveying a sheet by suppressing deformation of the upper cover.

[0006]

According to a first aspect of the present invention, there is provided a sheet conveying apparatus including a first member provided with a driving roller for conveying a sheet, and a driven roller for conveying the sheet together with the driving roller. A sheet conveying means having a second member, wherein the first member and the second member are arranged to face each other so as to pinch and convey the sheet by the driving roller and the driven roller; Locking means for locking the first member and the second member, and guide means for holding the paper transport means so as to be able to move in parallel between a storage position in the housing and a withdrawal position outside the housing. Wherein the first member and the second member are locked when the paper transporting unit is at the storage position, and a drawing direction from the storage position of the paper transporting unit to the drawing position. Release the locked state with the movement to Characterized by being configured.
The paper transport device according to claim 2, wherein the locking unit is held by the paper transport unit so as to be movable in the same direction as the moving direction of the paper transport unit. A stop member urged in the storage direction from the storage position to the storage position, and an engaged portion provided in the housing and formed on the stop member in the process of moving the paper transport unit in the storage direction. An engaging portion for engaging and stopping the first member and the second member by moving the stop member relative to the sheet conveying means against the urging. Features. According to a third aspect of the present invention, in the sheet transporting apparatus according to the first aspect, the guide unit includes a guide rail in which a plurality of pairs of opposed guide rollers are disposed along a moving direction of the sheet transport unit. A first protruding edge formed on the first member and extending in the moving direction of the sheet conveying means; and a second convex edge formed on the second member and extending in the moving direction of the sheet conveying means. And the paper transport means is configured to move while being sandwiched by the plurality of pairs of guide rollers in a state where the first and second convex edges are aligned. And
According to a fourth aspect of the present invention, in the paper transport apparatus according to the second aspect, in a process of moving the paper transporting unit in the storage direction, a locking part and a locked part constituting the locking unit are connected. Before engaging, the first member and the second member are relatively positioned by acting on the paper transporting means so that the locking portion and the locked portion have a predetermined positional relationship. And a pressing means for pressing. According to a fifth aspect of the present invention, in the sheet transporting apparatus according to the fourth aspect, the operation of the pressing means is released when the locking portion and the locked portion are locked. It is characterized by having comprised in.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic structural view of a main part of an image recording apparatus 1 showing an embodiment provided with a sheet conveying apparatus according to the present invention as viewed from the front, and FIG. FIG. 4 is an external perspective view schematically illustrating a state in which the paper transport unit 3 is pulled out from the main body of the apparatus 1 to a pull-out position outside the main body, and furthermore, the upper cover 3b is rotated upward and opened. Note that the viewpoint from the direction of arrow A shown in FIG. 2 corresponds to the front of the image recording apparatus 1.

The image recording apparatus 1 includes a paper cassette mounting portion 4 on which a paper cassette 5 containing recording paper 7 is mounted, and a paper transport for transporting the recording paper 7 along a transport path 6 as described later. A sheet transport unit 8 having a unit 3 and guide means for holding the unit 3 in a removable manner; a recording mechanism unit 2 for recording an image on the recording sheet 7 while transporting the recording sheet 7 along a transport path 6; It is composed of

In the above configuration, the uppermost recording sheet of the recording sheets 7 stacked in the sheet cassette 5 is conveyed along the conveying path 6a and is illustrated when passing through the conveying path 6b in the recording mechanism section 2. After the image is transferred by the transfer device which does not perform the transfer and passes through the fixing unit 2a, the route is selected by the route setting guide 2b.

At the time of single-sided printing, the sheet is sent to the transport path 6c and is discharged from the discharge section 2c to the outside. On the other hand, at the time of double-sided printing, the recording paper 7 that has passed through the fixing unit 2a is sent to a transport path 6d, and is passed through a transport roller 13 of the paper transport unit 3 that can rotate forward and reverse. 6e.

Thereafter, as will be described later, a conveying path 13f in the sheet conveying unit 3
After the image is transferred to the conveyance path 6b in the recording mechanism unit 2 and the image is transferred to the rear surface, the sheet passes through the fixing device 2a and the path setting guide 2b, and is then discharged to the outside from the discharge unit 2c.

FIG. 3A shows a sheet which is slidably held in the directions of arrows A and B by guide means, which will be described later, provided in the image recording apparatus 1 as a housing shown in FIG. FIG. 4 is a perspective view showing an outer shape of the sheet transport unit 3 corresponding to a transport unit, and FIG.
It is a perspective view showing the state where b opened.

FIG. 3B shows a first example of the paper transport unit 3.
FIG. 4 is a partially enlarged view of a portion surrounded by a dotted line of a bearing portion 3c that rotatably supports an upper cover 3b corresponding to a second member at four places in a frame 3a corresponding to the above member. As shown in these figures, the frame 3a of the paper transport unit 3
In each bearing 3c, a support shaft 3d formed coaxially and rotatably supporting the upper cover 3b is formed in each bearing portion 3c. 3e is formed. As a result, the upper cover 3 is attached to the support shaft 3 as shown in FIG.
It is possible to rotate by a predetermined angle about the axis 100 of d.

In the paper transport section 3g of the frame 3a, four transport rollers 10, 11, 12, and 13 (a total of 16 rollers) as driving rollers are rotatably provided on four axes orthogonal to the direction of the axis 100. Is held. Further, in the frame 3a, a drive motor, a motor drive circuit, a clutch, a belt, and the like for rotating these 16 transport rollers at the same speed and in the same direction at a predetermined timing are included. Shall be.

The upper cover 3b is provided with upper cover stopper members 14 and 15 slidably held in two directions parallel to the axis 100, respectively, in a direction orthogonal to the direction of the axis 100 as described later. It is arranged. Each of these upper cover stopper members 14, 1
A compression spring 19, 20 in a compressed state is suspended between the upper cover 3b and the upper cover 3b, and urges the upper cover stopper members 14, 15 in a direction approaching the axis 100. The post lock members 21 and 22 are provided on both sides of the front end of the frame 3a so as to be vertically slidably driven as described later. still,
The upper cover stopper members 14 and 15 correspond to stopper members that constitute locking means.

FIG. 5 is a perspective view showing the structure of the back surface of the upper cover 3b, that is, the back surface when viewed from the direction of arrow C shown in FIG. As shown in FIG. 4, when viewed from the front (in the direction of arrow A) of the paper transport unit 3, a raised portion 3f in which the upper surface of the frame 3a is raised in a semi-cylindrical shape is formed. Has four transport rollers 13
Are arranged.

The back surface of the upper cover 3b shown in FIG.
A depressed portion 3h is formed in a portion of the frame 3a facing the raised portion 3f along the raised surface. The depression 3h is formed with an introduction opening 3s for receiving a recording sheet, as will be described later, and further has a raised portion 3f (FIG. 4).
A pressure roller mechanism 17 that holds four pressure rollers 17a as driven rollers that are respectively pressed against the four transport rollers 13 is provided.

The pressure roller mechanism 17 includes a pressure roller 17a and a bracket 17c that rotatably holds the pressure roller 17a about a shaft 17b as a rotation axis and that is rotatably held by the upper cover 3b.
And a compression spring 17d which is hung in a compressed state between the bracket 17c and the upper cover 3b and presses the pressure roller 17a against the transport roller 13.

Further, on the back surface of the upper cover 3b, other transport rollers 10, 11, 1 provided on the frame 3a are provided.
A pressure roller mechanism 18 that holds twelve pressure rollers 18a as driven rollers that are in pressure contact with the respective transport rollers is disposed at a position facing 2 (a total of 12 rollers).

The pressure roller mechanism 18 holds the pressure roller 18a, a shaft 18b rotatably holding the pressure roller 18a, and vertically movable by the upper cover 3b, and a suspension between the shaft 18b and the upper cover 3b. And a pair of springs 18c that press the pressure roller 18a against each transport roller.

FIG. 6 shows a sheet transport unit 3 which is slid in the directions of arrows A and B by guide means to be described later.
FIG. 7 is a side view schematically showing a configuration in a state where the sheet is pulled out from the image recording apparatus 1 (FIG. 2) to a pull-out position. FIG. 8 is a side view schematically illustrating a configuration of a process stored in the apparatus 1 (FIG. 2) with a part cut away. FIG. FIG. 2 is a side view schematically showing a configuration in a state where the storage unit is stored at a storage position of FIG.

In the state shown in FIG. 6, the upper cover 3 rotatably supported on the frame 3a by the support shaft 3d.
b overlaps with the upper surface of the sheet conveying portion 3g (FIG. 4) of the frame 3a by its own weight, and the pressure rollers 17a, 18a
(FIG. 5) is in contact with the corresponding transport rollers 10 to 13 (FIG. 4) to maintain this state.

The upper cover stopper member 15 (14)
As described above, a direction orthogonal to the direction of the axis 100 is provided at two places (FIG. 3) at the free ends of the upper cover 3b, respectively.
That is, in the case of FIG. 6, it is slidably held in the directions of arrows A and B. The upper cover stopping member 15 is provided between the front end wall 3i of the upper cover 3b and the engaging portion 15a of the upper cover stopping member 15.
It is urged in the direction of arrow A by 0, and the state where one end 15b is pressed against the inner wall 3j of the upper cover 3b is maintained.

On the other hand, the upper frame 24 of the unit storage section for storing the paper transport unit 3 inside the image recording apparatus 1 (FIG. 2) is formed of sheet metal. The upper frame 24 is slidably contacted with a pair of protrusions 3k, 3l (see FIG. 3) formed on the upper cover 3b of the sheet transport unit 3b and having an inclined surface and projecting upward as described later. A pair of protruding portions 24a protruding downward by the inclined surface, an engaging claw 24b bent downward to be engaged with an engaging wall 15c as an engaged portion formed on the upper cover stopper member 15, and Fitting holes 24c and 24d into which the post lock members 21 and 22 formed in the frame 3a fit are formed.

Since the upper cover stopper member 14 has exactly the same configuration as the upper cover stopper member 15 including the peripheral components, it performs the same operation.
The description of the configuration and operation is omitted. In addition, the engagement claw 24
“b” corresponds to an engagement portion that forms a locking means together with the upper cover stopper member, and the pair of protrusions 3k and 3l and the pair of protrusions 24a form a pressing means.

In the main configuration described above, the paper transport unit 3 is stored in the storage position in the image recording apparatus 1 from the state shown in FIG. 6 where the paper conveyance unit 3 is pulled out from the image recording apparatus 1 (FIG. 2). Each operation up to the state of FIG. 8 will be described.

When the paper transport unit 3 is pulled out from the image recording apparatus 1 (FIG. 2) shown in FIG. 6, the other end 15d of the upper cover stopper 15 is formed on the front end wall 3i of the upper cover 3b. It fits inside without protruding from the derived opening 3m. For this reason, the user
The upper cover 3b is quickly turned in the direction of arrow C,
The upper cover 3b can be in the open state shown in FIG. 2 (or FIG. 3). In this state, the jammed paper present in the paper transport unit 3 can be removed.

After the upper cover 3b is closed again to bring it to the state shown in FIG. 6, the paper transport unit 3 is moved in the direction of arrow A to start storing in the image recording apparatus 1.

After a while, as shown in FIG.
The protrusion 3k formed on the upper surface of the upper cover 3b contacts the protrusion 24a of the upper frame 24, and continues to slide while being pressed. By this pressing, the upper cover 3b is restricted to a predetermined rotation position, and the upper cover stopper member 1 is maintained while maintaining this rotation position.
5 is engaged with the engaging claw 24 of the upper frame 24.
b.

By this engagement, the upper cover stopper 1
When the paper transport unit 3 further moves in the direction of arrow A, the other end 15d of the upper cover stop member 15 moves through the opening 3m of the upper cover 3b while the compression spring 20 is compressed. And is fitted into a rotation position regulating hole 3n formed in the front wall 3u of the frame 3a. Then, the paper transport unit 3 reaches the storage position in the main body of the image recording apparatus 1 shown in FIG.

At this storage position, the pair of post lock members 21 and 22 (see FIG. 4) slide upward, and the fitting holes 24 c and 24 formed in the upper frame 24 respectively.
d, and locks the paper transport unit 3 in this storage position. The other end 15 of the upper cover stopper 15
d corresponds to the locking portion of the locking means, and the turning position regulating hole 3n formed in the front wall 3u of the frame 3a corresponds to the locked portion of the locking means.

On the other hand, the paper transport unit 3 in the storage position
When pulling out the pair of post lock members 21 and 22 (see FIG. 4), the
Lower from 4c, 24d. At this time, the paper transport unit 3 jumps out in the direction of arrow B due to the restoring force of the compression spring 20. At this stage, the other end 15d of the upper cover stopper 15 comes off the rotation position regulating hole 3n,
One end 15b of the upper cover stopper member 15 contacts the inner wall 3j of the upper cover 3b again.

FIG. 7 corresponds to a state immediately before the one end 15b comes into contact with the inner wall 3j in the drawing process. Thereafter, the user further moves the paper transport unit 3 by the arrow B.
By pulling out in the direction, it can be moved again to the pull-out position shown in FIG. 6 (see FIG. 2).

According to the above operation, when the other end 15d of the upper cover stopper member 15 is fitted into the rotation position regulating hole 3n formed in the frame 3a, the upper cover 3b
Is pressed by the protruding portion 24a of the upper frame 24 to maintain a predetermined rotation angle, so that it can be securely and smoothly fitted.

The upper cover 3 in the storage position
The rotation angle b can be accurately positioned by the rotation position regulating hole 3n formed in the frame 3a. The rotation angle at this time is set to an angle at which a desired pressing force is generated when each of the pressure rollers 17a and 18a formed on the upper cover 3b abuts on the corresponding one of the transport rollers 10 to 13.

When the post lock members 21 and 22 are fitted in the fitting holes 24c and 24d and locked in the storage position, the frame 3a itself is urged in the direction of arrow B by the compressed compression springs 19 and 20. Because
Each of the post lock members 21 and 22 presses the same-direction portions in the fitting holes 24c and 24d respectively fitted therein,
It is possible to prevent rattling at the storage position.

FIG. 9 shows a guide means of the paper transport unit 3, as shown by a dotted line in FIG. 2, a guide rail disposed on the left inner side when viewed from the front of the image recording apparatus 1 (in the direction of arrow A). It is a perspective view which shows the structure of 26. FIG. 10 shows the guide rail 26 and a mounting table 25 which is also a guide means and is disposed on the right inner side of the image recording apparatus 1 so as to support the right side of the paper transport unit 3. FIG. 5 is an operation diagram illustrating a sheet conveying operation of the sheet conveying unit 3 held by the printer.

As shown in FIG. 9, a guide groove 26a is formed at the center of the guide rail 26 along the longitudinal direction. On the side wall of the guide groove 26a, the peripheral surfaces of the pair of guide rollers face each other via the guide groove 26a.
A pair of guide rollers 28 and 29 are arranged at substantially equal intervals. The guide rail 26 is located in the recording apparatus 1 as shown by a dotted line in FIG. 2, and is arranged such that the guide groove 26a is along the directions of arrows A and B.

On the other hand, as shown in FIG.
At the left end as viewed from the front (in the direction of arrow A), a convex edge 3p as a second convex edge formed over the entire side surface is formed on the upper cover 3b.
In a, a protruding edge 3q is also formed as a first protruding edge. These protruding edges 3a, 3q are aligned with each other with the upper cover 3b closed as shown in FIG. Hereinafter, the projection formed in a state where these are aligned is referred to as an alignment projection edge 3r.

As shown in FIG. 10, the paper transport unit 3 is guided in a state where the alignment convex portion 3r is fitted in the guide groove of the guide rail 26 and is sandwiched between the pair of guide rollers 28 and 29, and is indicated by an arrow. It slides in the A and B directions. Also, three pairs of guide rollers 28, 2 shown in FIG.
Reference numeral 9 denotes a position where the sheet conveying unit 3 is located at the storage position where the both ends and the center of the alignment convex edge 3r are sandwiched.

The paper transport operation performed by the paper transport unit 3 at the storage position during double-sided printing of recording paper will be described with reference to the operation diagram of FIG. At this time, the four transport rollers 13 (see FIG. 4) that rotate in conjunction with each other as shown in FIG. 10A rotate forward in the direction of arrow E together with the other transport rollers, and the path setting guide 2b and the transport path 6d
The recording paper 7 sent via (FIG. 1) is introduced through the introduction opening 3s and sent to the retreat path 6e.

Then, the recording paper 7 shown in FIG.
At the stage when the rear end of the
3 temporarily stops, and then reverses in the direction of arrow F as shown in FIG. At this time, the rear end of the recording paper 7 is guided to the film 30 to reach the transport path 6f, and each of the transport rollers 10 to 12 and the pressure roller 18 rotating in the same direction.
a and moves on the same conveyance path 6f. Eventually, the recording sheet 7 discharged from the discharge opening 3t is printed on the back surface via the transport path 6b (FIG. 1) as described above, and then discharged outside the apparatus from the discharge unit 2c (FIG. 1).

In the paper transport unit 3 having the above functions, according to the guide rail 26 for guiding the paper transport unit 3,
Even when the paper transport unit 3 is pulled out of the image recording apparatus 1 in a state where the jammed paper is sandwiched, the upper cover 3b can be smoothly pulled out without fluttering.

Also, when the paper transport unit 3 is in the storage position and the recording paper 7 is transported, the frame 3a and the upper cover 3b are moved to the left side at the left end.
Since the upper cover 3b is sandwiched between the portions, the warpage of the upper cover 3b can be suppressed. Therefore, four pressing rollers 17a (FIG. 5) arranged coaxially at the raised portions 3f (FIG. 4) and four pressure rollers 17a (FIG. 5) disposed on the upper cover 3b and pressed against the respective conveying rollers 13 press each other. Since the pressure can be maintained uniform, the recording paper 7 can be transported smoothly.

[0045]

According to the first aspect of the present invention, the locking state between the frame and the upper cover is automatically released when the paper transport unit is pulled out to the pull-out position. The removal operation can be performed quickly.

According to the second aspect of the present invention, when the paper transport unit is in the storage position, the paper transport unit is urged in the pull-out direction. Can be easily prevented.

According to the third aspect of the present invention, when the recording sheet is conveyed by the sheet conveying unit, the plurality of conveying rollers arranged on the frame and the same number of pressure rollers disposed on the upper cover and pressed against the same are provided. Can be maintained uniformly, so that the recording paper can be smoothly conveyed.

According to the paper transport device of the fourth and fifth aspects,
When the other end of the upper cover stopper member is fitted into the rotation position regulating hole formed in the frame, the best corresponding positional relationship can be maintained, so that the fitting can be performed reliably and smoothly.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a main part configuration of an image recording apparatus showing an embodiment provided with a sheet transport device of the present invention as viewed from the front.

FIG. 2 is an external perspective view schematically illustrating a state in which a paper transport unit is pulled out of the image recording apparatus main body to a pull-out position outside the main body, and furthermore, an upper cover is rotated upward and opened.

FIG. 3A is a perspective view illustrating an outer shape of a sheet transport unit, and FIG. 3B is a partially enlarged view of a bearing portion in which a frame rotatably supports an upper cover.

FIG. 4 is a perspective view illustrating a state in which an upper cover of the sheet transport unit is opened.

5 is a perspective view showing the configuration of the back surface of the upper cover, that is, the back surface when viewed from the direction of arrow C shown in FIG. 4;

FIG. 6 is a side view schematically illustrating a configuration in which the paper transport unit is pulled out to a pull-out position, with a part thereof being cut away.

FIG. 7 is a side view schematically illustrating a configuration of a process in which the sheet transport unit is stored in the image recording apparatus, with a part thereof being cut away.

FIG. 8 is a side view schematically showing a configuration in which the sheet transport unit is stored at a storage position in the image recording apparatus, with a part thereof being cut away.

FIG. 9 is a perspective view illustrating a configuration of a guide rail that guides a sheet transport unit.

FIG. 10 is an operation diagram illustrating a sheet conveyance operation of the sheet conveyance unit held at the storage position.

[Explanation of symbols]

Reference Signs List 1 image recording apparatus, 2 recording mechanism section, 2a fixing section, 2b path setting guide, 2c discharge section, 3 paper transport unit, 3a frame, 3b upper cover, 3c bearing section, 3d support shaft, 3e bearing section, 3f raised section , 3g paper transport section, 3h depression section, 3i front end wall, 3j inner wall, 3k, 3l
Projection, 3m lead-out opening, 3n rotation position regulating hole, 3p, 3q convex edge, 3r alignment convex edge, 3
s inlet opening, 3t outlet opening, 3u front wall, 4
Paper cassette mounting section, 5 paper cassette, 6 transport path, 6a to 6d transport path, 6e evacuation path, 7
Recording paper, 8 paper transport unit, 10 to 13 transport rollers, 14, 15 upper cover stopper member, 15
a locking portion, 15b one end portion, 15c engagement wall,
15d other end, 17 pressure roller mechanism, 17
a pressure roller, 17b shaft, 17c
Bracket, 17d compression spring, 18 pressure roller mechanism, 18a pressure roller,
18b shaft, 18c spring, 19,2
0 compression spring, 21, 22 post lock member, 24 upper frame, 24a protrusion,
24b engaging claw, 24c, 24d fitting hole, 25
Mounting table, 26 guide rail, 26a guide groove, 28, 29 guide roller, 30 film.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H072 EA16 EA19 3F049 AA04 LA01 LA03 LB03 3F100 AA02 BA04 BA14 BA23 CA14 CA15 3F101 FB12 FC05 FC11 FE04 FE08 LA01 LA03 LB03

Claims (5)

[Claims] A first member provided with a drive roller for transporting a sheet; and a second member provided with a driven roller for transporting the sheet together with the drive roller. A sheet conveying means in which the first member and the second member are arranged to face each other so as to pinch and convey the sheet by a driven roller; and a first member and the second member. Locking means for stopping, and guide means for holding the paper transport means so as to be able to move in parallel between a storage position in the housing and a withdrawal position outside the housing, wherein the paper transport means is in the storage position. At one time, the first member and the second member are locked, and the locked state is released with the movement of the sheet conveying means in the pull-out direction from the storage position to the pull-out position. Paper transport, characterized in that apparatus. 2. The stopping means is movably held by the sheet conveying means in the same direction as the moving direction of the sheet conveying means, and is urged in a storing direction from the drawing position to the storing position. A member, which is disposed within the housing and engages with an engaged portion formed on the stop member in the process of moving the paper transporting means in the storage direction, and presses the stop member against the urging. 2. The sheet conveying device according to claim 1, further comprising an engaging portion that moves relative to the sheet conveying means to lock the first member and the second member. 3. The paper transporting means, wherein the guide means comprises: a guide rail having a plurality of pairs of opposed guide rollers disposed along a moving direction of the paper transporting means; And a second convex edge formed on the second member and extending in the moving direction of the sheet conveying means, wherein the sheet conveying means has 2. The sheet conveying device according to claim 1, wherein the first and second convex edge portions are configured to move while being sandwiched between the plurality of pairs of guide rollers in a state of being aligned. 4. In the process of moving the paper transporting means in the storage direction, before the locking part and the locked part constituting the locking means engage with each other, the locking part and the locked part are engaged. 3. A pressing means for acting on said sheet conveying means so as to bring said stopper into a predetermined positional relationship to relatively position said first member and said second member. Paper transport device according to the above. 5. The paper according to claim 4, wherein the function of the pressing means is released when the locking portion and the locked portion are locked. Transport device.